// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r"(?m)(?:ID Number: ([A-Z0-9]{2})|(?<!^)\G):?([A-Z0-9]{2})").unwrap();
let string = "ID Number: 4D:9B:C4:C6:F1:G5:Y6 foo :C5:D4:Y6";
let substitution = "$1 $2";
// result will be a String with the substituted value
let result = regex.replace_all(string, substitution);
println!("{}", result);
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/